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Finding the Fourth Proportional to 375,909.35, 563,854.64 and 109,672.20

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Solution

The fourth proportional to 375,909.35, 563,854.64 and 109,672.20 is: 164,505.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,909.35 : 563,854.64 = 109,672.20 : x
  2. Step 2: Convert to fraction form
    375,909.35/563,854.64 = 109,672.20/x
  3. Step 3: Cross multiply
    375,909.35x = 563,854.64 × 109,672.20
  4. Step 4: Simplify right side
    375,909.35x = 61,839,178,300.65
  5. Step 5: Solve for x
    x = 61,839,178,300.65/375,909.35
  6. Step 6: Final answer
    x = 164,505.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.